<template>
  <div :class="className" :style="{height:height,width:width}"/>
</template>

<script>
  import echarts from 'echarts'

  require('echarts/theme/macarons') // echarts theme
  import resize from './mixins/resize'
  import {getLastWeek} from "@/utils/date";

  export default {
    mixins: [resize],
    props: {
      className: {
        type: String,
        default: 'chart'
      },
      width: {
        type: String,
        default: '100%'
      },
      height: {
        type: String,
        default: '350px'
      },
      autoResize: {
        type: Boolean,
        default: true
      },
      chartData: {
        type: Object,
        required: true
      }
    },
    data() {
      return {
        chart: null,
        lastWeek: [],
        colors: [
          '#FF005A',
          '#3888fa',
          '#09b924',
          '#c494ff',
          '#911a79',
          '#34bfa3',
          '#f4516c',
          '#a3fff3',
          '#ffe513',
        ]
      }
    },
    watch: {
      chartData: {
        deep: true,
        handler(val) {
          this.setOptions(val)
        }
      }
    },
    mounted() {
      this.$nextTick(() => {
        this.initChart()
        this.lastWeek = getLastWeek()
      })
    },
    beforeDestroy() {
      if (!this.chart) {
        return
      }
      this.chart.dispose()
      this.chart = null
    },
    methods: {
      initChart() {
        this.chart = echarts.init(this.$el, 'macarons')
        this.setOptions(this.chartData)
      },
      setOptions(data) {

        //强行取消图表,否则统计类目少于之前的,仍存在,应该是替换series数据展示而已
        this.chart.dispose()
        this.chart = echarts.init(this.$el, 'macarons')

        let keys = []
        let seriesList = []
        let _that = this;
        for (let k in data) {
          console.log(k)
          keys.push(k)
          let series = {
            name: k, itemStyle: {
              normal: {
                color: _that.colors[keys.length - 1],
                lineStyle: {
                  color: _that.colors[keys.length - 1],
                  width: 2
                }
              }
            },
            smooth: true,
            type: 'line',
            data: data[k],
            animationDuration: 2800,
            animationEasing: 'cubicInOut'
          }
          seriesList.push(series)
        }


        this.chart.setOption({
          xAxis: {
            data: _that.lastWeek,
            boundaryGap: false,
            axisTick: {
              show: false
            }
          },
          grid: {
            left: 10,
            right: 10,
            bottom: 20,
            top: 30,
            containLabel: true
          },
          tooltip: {
            trigger: 'axis',
            axisPointer: {
              type: 'cross'
            },
            padding: [5, 10]
          },
          yAxis: {
            axisTick: {
              show: false
            }
          },
          legend: {
            // data: ['expected', 'actual']
            data: keys
          },
          series: seriesList
          /*series: [{
            name: 'expected', itemStyle: {
              normal: {
                color: '#FF005A',
                lineStyle: {
                  color: '#FF005A',
                  width: 2
                }
              }
            },
            smooth: true,
            type: 'line',
            data: expectedData,
            animationDuration: 2800,
            animationEasing: 'cubicInOut'
          },
            {
              name: 'actual',
              smooth: true,
              type: 'line',
              itemStyle: {
                normal: {
                  color: '#3888fa',
                  lineStyle: {
                    color: '#3888fa',
                    width: 2
                  },
                  areaStyle: {
                    color: '#f3f8ff'
                  }
                }
              },
              data: actualData,
              animationDuration: 2800,
              animationEasing: 'quadraticOut'
            }]*/
        })
      }
    }
  }
</script>
